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Dynamic table

Art Data
  Art Data
Rhico
  Rhico
  Friday, 11 June 2021
  1 Replies
  1K Visits
0
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Hi,
when I create a dynamic table from a csv file and preview the table the following error appears above the table:

Warning: count(): Parameter must be an array or an object that implements Countable in C:\xampp\htdocs\xxxx\components\com_artdata\layouts\visualization.php on line 259

how can I solve this problem? Tks

joomla 3.9.22
php 7.4.16